Tan x tan x + tan x = 0

Step-by-step explanation:

We express the angle x in radians for all possible values of x:

let tan(x)=u:

#Substitute back u=tan(x)

#We assign for all values of x

#Hence, the equation's solutions are:

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113.1

step-by-step explanation:

v=4

3πr3=4

3·π·33≈113.09734